Service-pipe box and cut-off



Patented June 8, 1926.

UNITED STATES PATENT OFFICE.

HARRY STEVENS ISI-IAM, 0F IBELMAR, JERSEY.

SERVICE-PIPE BOX Ann CUT-OFF.

Application filed August 25, 1925. Serial No. 52,426.

effectual device or appurtenance of the character mentioned.

Another object of the invention is to effect a sealing association of the box casings and at the same time to effect an opening of the valve of the service pipe with respect to which the box casings are juxtaposed, and to effect the closing of the valve simultaneously with the disestablishment of the sealing associationof the. box-casings.

lVith the foregoing and other objects in view, the invention resides in the particular provision, relative disposition, and functions of the parts hereinafter fully described and illustrated in the accompanying drawing, in which Figure 1 is in part a sectional elevation of a service pipe box of the present invention applied to a service pipe and its valve or cut-01f.

Fig. 2 is in part a sectional elevation of the box removed from the service pipe; the section being taken substantially on the line 22 of Fig. 1.

Fig. 3 is a horizontal sectional view taken substantially on the line 33 of Fig. 1.

' It is the practice to inter service pipes in the ground a suificient depth to be below the frost line, and that being the case it is necessary to employ a box or casing construction for rendering the valve of the service pipe accessible for opening and closing the valve. To this end there is provided Within the present invention an outer box casing 10, which in the present instance, is cylindrical, and an inner box casing 11 which is also preferably cylindrical. The said casings 10 and 11 are adapted to be associated in a manner to be hereinafter explained with a service pipe, such as a service pipe 12 which supplies either water or gas and a valve or cut-off 13 in the pipe 12; one casing fitting within the other and being disposed vertically and in alignment with the valve 13. The lower end of the casing 10 at diametrically opposite points in the wall thereof has cutaways which accommodate the sections of the pipe 12 which are connected to the valve 13, portions of the wall being extended to provide a flange 15 which rests on the sec tions of thepipe and which will act as a holding means when the casing v10 is sunk.

The upper end of the casing 11 is provided with a cap 16 which closes the upper end of the casing 11 and which provides a marginal'portion 17 having a depending flange 18; there being a space 19 between theflange and the wall of the casing for the reception of one or more gaskets 20.

The casing 10 and 11, in the present em bodiment of the invention, embody or have associated therewith means for causing the inner, casing 11 to move longitudinally relatively to the outer casing 10 to cause the marginal portion 17 and the flange 18 to engage the upper end of the casing 10, and

- the said means consists of pins 21 which extend radially inward from the wall of the casing 10 diametrically opposite each other, whereas, the lower end'of the casing 11 is provided with substantially L-shaped slots 22 which occur in the wall of the casing diametrically opposite each other.

branch 23 and a branch 24, the walls of the latter being inclined upwardly from the branch 23-to act as a cam when the pins 21 respectively are in the branches 2 1 and the casing 11 is turned, which will cause the closing engagement of the coverportions with the upper end of the casing 10.

In order that the valve 13 will be opened when the cover portions are brought into sealing or closing. relationship with the upper end of the casing 10,'and to close the valve 13 when the cover portions are disengaged from .theupper end of the casing 10, there are provided pairs of spaced lugs'25 at diametrically opposite points on Each of l the slots 22 being L-shaped provides a the wall of the casing 11. The lugs 25 of each pair are arranged respectively at opposite sides of the branch 23 of the parrelationship with the upper end of the cas- 'ing 10 and the handle 26 of the plug the closing of the cap on the valve is provided with a handle or means similar to the handle 26. Portions of the handle 26 are received respectively between the pairs of lugs as shown most clearly in Figs. 1 and 3 and by turning the casing l1 substantially 90 the cap 16 will be closed upon the upper end of the casing 10 and the valvewill be opened. YJh'en the pins are disposed against the walls 01" the branches 2% -respectively,- further turning movement of the casing 11 in one direction is prevented, although it may not be necessary to turn the casing 11- the full 90 to effect upper end of the casing 10. In the drawing the plug 27 of the valve is shown as being provided witha pin 28 which is adapted to engage shoulders 29 on the valve casing, the said shoulders being substantially 90 apart' to limit the movement of the plug in opposite directions. When the pin 28 is-in engagement with one 'of'the shoulders 29' the valve is open and when the pin 28 is in engagement with the other shoulder 29 the valve is closed. 7

In order to perm t the casing 11 to be turned and to prevent the same from being withdrawn from the casing 10, there isprovided in the casing '11 an annular groove 30 in which is disposed'the end of a screw 31. The groove 30 issufliciently wide to permit the relative longitudinal movement of the casing 11 with respect to the easing 10.

It is to be understood that the invention is not restricted to the precise arrangement of parts shown and described, as details of construction may be modified and r e-arranged without departing from the spirit of the invention, the scope of which is limited only by the terms of the appended claims.

I claim:

1. The combination with a service pipe valve, of an inner and an outer box casing, a

end of said inner casing and having a marcap on the inner casing .adaptedto close down on the outer casing, coacting means on the casings and valve which serve to open the valve and simultaneously close the'cap down on said outer casing when a force is applied to said inner casin 2. In a service pipe box, an inner casing, an outercasing,;. a .,cap on the inner casing which is adapted to be closed down on the upper end of said outer casing, coacting means on said casings which cause the cap, to close downon the upper-end of said outer casing when a turning torce'isappl-ied to said inner casin and means-for perinitting the turning 01 the inner'oasing. and for preventing thewitlid'rawalof said inner casing from the outer casing.

The combination with aservicepipe valve whose plug is provided'wi-tlr a handledisposed diametrically with respect to the axis on which the plug turns in opening and closing the valve, ofan-outer: casing, an inner casing, a cover closing the upper ginal portionand' flange which are adapted to accommodate the upper end of theouter casing, pins extending radiallyinward from the said'outer casing diametrically opposite each other, cams on said inner casing which coact with said pins when the innercasing '18 turned to cause the cover, marginalportion and flange to bear down in sealingrelationship with the upper end of said outer casing, and diametrically opposed pairs of spaced lugs on said in-ner'ca'sing which accommodate portions of said handle tocause the plug of the valve to turn -.to' opent-he valve when said inner casing-is'turned.

4. The combination with a service pipe valve,- of a'box casing, a -cap adapted to be brought. into sealing relationship with the upper end of said box -casi-ng, coacting means carried by said cap and said valve respectively which serves to open the valve and simultaneously bring-thecap down in sealing relationship with the upper end 10f said box casing when said cap is turned in one direction, .a-id 'co'aetiiig means also serving to close said valve and'simultaneously remove said cap from its sealingvre- 'la-tionship with said upper end of said box casing when said cap is turned in aqdi-rection opposite to thatiii'st-;nientioned',' and means which limits the turning movement 1 of said cap in either direction.

HARRY STEVENS ISHAM. 

